CN110949202B - High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat - Google Patents
High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat Download PDFInfo
- Publication number
- CN110949202B CN110949202B CN201911416114.3A CN201911416114A CN110949202B CN 110949202 B CN110949202 B CN 110949202B CN 201911416114 A CN201911416114 A CN 201911416114A CN 110949202 B CN110949202 B CN 110949202B
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- cam
- coil spring
- driving shaft
- tooth block
- tooth
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- 230000008859 change Effects 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 5
- 230000006872 improvement Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a high-strength multipoint contact type angle adjuster self-locking structure of an automobile seat, which comprises a fixed disc, wherein a driving shaft is arranged in the fixed disc, and a self-locking assembly is arranged between the driving shaft and the fixed disc; the self-locking assembly comprises a cam and a coil spring, the cam is arranged on the driving shaft, a tooth block is arranged between the cam and the fixed disc, the coil spring comprises a cam pre-tightening coil spring, the cam pre-tightening coil spring is arranged between the cam and the fixed disc, and the periphery of the fixed disc is provided with a movable disc. The invention adopts the tooth-shaped engagement of the plurality of tooth blocks and the movable disc, reduces the material and thickness of the movable disc and the fixed disc, thereby reducing the weight, and the engagement of the plurality of tooth blocks can improve the locking strength, and the tooth-shaped engagement of the plurality of tooth blocks and the movable disc through the cam curve and the tooth block curve skillfully reduces the number of angle adjusters, reduces the weight of the seat and reduces the cost.
Description
Technical Field
The invention belongs to the technical field of automobile seat equipment, and relates to a high-strength multipoint contact type self-locking structure of an angle adjuster of an automobile seat.
Background
The existing automobile seat adjusting mechanism is divided into two main types according to the latest automobile industry standard (QC) in China, namely an adjusting mechanism for adjusting the angle of a seat back according to fixed pitch (namely angle), and the adjusting mechanism is called a discontinuous seat back angle adjuster; secondly, the adjusting mechanism capable of randomly adjusting the angle of the seat back is called as a continuous seat back angle adjuster, and the continuous seat back angle adjuster is used for manually adjusting the angle of the seat back, and has the advantages of relatively simple structure, convenient use, strong universality, low cost and the like, so that the continuous seat back angle adjuster is widely applied; the latter is used for electric adjustment of the angle of the backrest, and is used for middle and high-grade automobile seats due to the relatively complex structure and high production cost.
The seat back angle adjusters are symmetrically arranged at two sides of the seat, and the driving shafts 5 of the angle adjusters at two sides are connected through the synchronous rods. The single locking forward and backward strength of the seat back angle adjuster is higher than 3000Nm, and the locking structure is single in stress point and easy to damage.
Disclosure of Invention
The invention aims to provide a high-strength multipoint contact type angle adjuster self-locking structure of an automobile seat, which has high strength, and specifically adopts tooth blocks to be meshed with a movable disc in a tooth shape, so that the materials of the movable disc and a fixed disc are reduced, the thickness is reduced, the weight is reduced, the locking strength can be improved by the meshing of the tooth blocks, and the tooth blocks and the movable disc are skillfully meshed together through a cam curve and a tooth block curve.
According to the technical scheme provided by the invention: a high-strength multipoint contact type angle adjuster self-locking structure of an automobile seat comprises a fixed disc, wherein a driving shaft is arranged in the fixed disc, and a self-locking assembly is arranged between the driving shaft and the fixed disc; the self-locking assembly comprises a cam and a coil spring, the cam is arranged on the driving shaft, a tooth block is arranged between the cam and the fixed disc, the coil spring comprises a cam pre-tightening coil spring, the cam pre-tightening coil spring is arranged between the cam and the fixed disc, and a movable disc is arranged on the periphery of the fixed disc.
As a further improvement of the invention, a driving shaft mounting groove is formed in the fixing disc, one side of the driving shaft mounting groove is communicated with a driving shaft through hole, a coil spring mounting groove is formed in the periphery of the driving shaft mounting groove, the coil spring mounting groove is a cam coil spring mounting groove, a coil spring positioning block is arranged in the coil spring mounting groove, a tooth block spacing block is arranged on one side of the driving shaft mounting groove, and a tooth block sliding groove is formed between the tooth block spacing blocks.
As a further improvement of the invention, the middle part of the driving shaft is provided with a driving shaft mounting ring, one side of the driving shaft mounting ring is provided with a cam mounting shaft end, the periphery of the cam mounting shaft end is provided with a cam limiting block, the top surface of the cam limiting block is provided with a cam limiting surface, and one side of the cam limiting block is provided with a cam positioning block.
As a further improvement of the invention, a gear mounting hole is formed in the cam, a gear positioning groove is formed in the gear mounting hole, a cam coil spring lug is arranged on the cam, and the periphery of the cam is a cam gradual change surface.
As a further improvement of the invention, a coil spring positioning groove is arranged in the middle of the coil spring, and the end part of the coil spring is an elastic pre-tightening end; the coil spring is the cam pre-tightening coil spring.
As a further improvement of the invention, the outer circumference of the tooth block is an outer tooth part, and the inner circumference of the tooth block is a tooth block gradual change surface.
As a further improvement of the present invention, an inner circumference of the movable disk is provided with an inner gear ring engaged with the outer gear part of the outer circumference of the tooth block.
As a further improvement of the invention, the coil spring positioning groove and the coil spring positioning block are semicircular.
As a further improvement of the present invention, the cam gradation surface includes a first cam gradation surface and a second cam gradation surface.
As a further improvement of the present invention, the tooth block taper surface includes a first tooth block taper surface and a second tooth block taper surface.
Compared with the prior art, the invention has the following advantages:
1. the invention adopts the tooth-shaped engagement of a plurality of tooth blocks and the movable disc, reduces the material and thickness of the movable disc and the fixed disc, thereby reducing the weight, and the engagement of the 6 tooth blocks can improve the locking strength, and the tooth-shaped engagement of the plurality of tooth blocks and the movable disc is skillfully realized through the cam curve and the tooth block curve.
2. The invention reduces the total weight of the angle adjuster to 0.35Kg, and the locking front-rear direction strength of a single angle adjuster can be higher than 3000Nm, so that the invention is applicable to customers with higher strength to the seat, and the invention can reduce the weight of the seat by reducing one angle adjuster by partially adopting the seat with the double-side angle adjuster and the single locking front-rear strength of 2000 Nm.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Fig. 3 is a schematic structural view of the fixing plate of the present invention.
Fig. 4 is a schematic view of the cam and tooth block mating structure of the present invention.
Fig. 5 is a schematic view of the structure of the cam of the present invention.
Fig. 6 is a schematic view of the structure of the tooth block of the present invention.
Fig. 7 is a schematic view of the structure of the coil spring of the present invention.
Fig. 8 is a schematic view of the structure of the coil spring installation of the present invention.
Fig. 9 is a schematic structural view of the driving shaft of the present invention.
Fig. 10 is a schematic view of the locking structure of the present invention.
Fig. 11 is a schematic diagram of the structure of the invention at the beginning of unlocking.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
In fig. 1-11, the device comprises a fixed disc 1, a left surface 1-1, a right surface 1-2, a driving shaft mounting groove 1-3, a driving shaft through hole 1-4, a coil spring mounting groove 1-5, a coil spring positioning block 1-6, a tooth block spacing block 1-7, a tooth block sliding groove 1-8, a movable disc 2, a self-locking assembly 3, a cam 3-1, a gear mounting hole 3-11, a gear positioning groove 3-12, a left cam 3-13, a right cam 3-14, a cam coil spring lug 3-15, a cam gradual change surface 3-16, a first cam gradual change surface 3-161, a second cam gradual change surface 3-162, a tooth block 3-2, an outer tooth part 3-21, a tooth block gradual change surface 3-22, a first tooth block gradual change surface 3-221, a second tooth block gradual change surface 3-222, a coil spring 3-3, a coil spring positioning groove 3-31, an elastic pre-tightening end 3-32, a shell 4, a driving shaft 5, a driving shaft mounting ring 5-1, a cam limiting block 5-2, a driving shaft acting surface 5-21, a cam limiting surface 5-22, a cam limiting surface 5-4, a shaft end 5-4, and the like.
The invention discloses a self-locking structure of a high-strength multipoint contact angle adjuster of an automobile seat, which is shown in fig. 1-2, and comprises a fixed disc 1, wherein the fixed disc 1 comprises a left surface 1-1, the back surface of the left surface 1-1 is a right surface 1-2, a driving shaft mounting groove 1-3 is formed in the fixed disc 1, one side of the driving shaft mounting groove 1-3 is communicated with a driving shaft through hole 1-4, a coil spring mounting groove 1-5 is uniformly formed in the periphery of the driving shaft mounting groove 1-3, the coil spring mounting groove 1-5 is a cam coil spring mounting groove, and a coil spring positioning block 1-6 is arranged in the coil spring mounting groove 1-5. One side of the driving shaft mounting groove 1-3 is provided with tooth block spacing blocks 1-7 in a six-equal way, and tooth block sliding grooves 1-8 are formed between the tooth block spacing blocks 1-7.
The fixed disk 1 is provided with a driving shaft 5, as shown in fig. 9, the middle part of the driving shaft 5 is provided with a driving shaft mounting ring 5-1, one side of the driving shaft mounting ring 5-1 is provided with a cam mounting shaft end 5-4, the periphery 3 of the cam mounting shaft end 5-4 is uniformly provided with cam limiting blocks 5-2 in an equal part, and the top surface is provided with cam limiting surfaces 5-22. One side of the cam limiting block 5-2 is provided with a cam positioning block 5-3. The cam limiting block 5-2 and the cam positioning block 5-3 are positioned on the same axis. The drive shaft mounting ring 5-1 is located in the drive shaft mounting groove 1-3 and the cam mounting shaft end 5-4 is located in the left side 1-1 of the stationary disc 1.
As shown in fig. 2, a self-locking assembly 3 is arranged between the driving shaft 5 and the fixed disc 1, so that the driving shaft 5 and the fixed disc 1 cannot move under the normal state.
The self-locking assembly 3 comprises a cam 3-1, a tooth block 3-2 and a coil spring 3-3, as shown in fig. 4-5, the cam 3-1 comprises a cam left side 3-13, the back surface of the cam left side 3-13 is a cam right side 3-14, a gear mounting hole 3-11 is formed in the cam 3-1, the gear mounting hole 3-11 is matched with a cam mounting shaft end 5-4, gear positioning grooves 3-12 are uniformly formed in the gear mounting hole 3-11 in a uniformly-divided mode, and the gear positioning grooves 3-12 are matched with the cam positioning blocks 5-3. The cam 3-1 is provided with cam coil spring lugs 3-15 equally spaced on the right side 3-14 of the cam. The cam 3-1 is arranged on the driving shaft 5, the cam installation shaft end 5-4 is positioned in the gear installation hole 3-11, the cam positioning block 5-3 is embedded into the gear positioning groove 3-12, the peripheral dimension of the cam limiting block 5-2 is larger than that of the cam positioning block 5-3, the cam limiting surface 5-22 abuts against the end face of the cam 3-1, which is positioned on the right side 3-14 of the cam, and radial unidirectional limiting of the cam 3-1 and the driving shaft 5 is completed.
As shown in FIG. 7, a coil spring positioning groove 3-31 is formed in the middle of the coil spring 3-3, the coil spring positioning groove 3-31 is matched with the coil spring positioning block 1-6, and the end part of the coil spring 3-3 is an elastic pre-tightening end 3-32. As shown in fig. 8, the coil spring 3-3 is located in the coil spring mounting groove 1-5, the coil spring positioning block 1-6 is embedded in the coil spring positioning groove 3-31, the fixation of the coil spring 3-3 and the fixed disc 1 is completed, the coil spring 3-3 is a cam pre-tightening coil spring, and the elastic pre-tightening end 3-32 of the cam pre-tightening coil spring abuts against the side surface of the cam coil spring lug 3-15 to prevent the cam 3-1 from rotating anticlockwise (unlocking direction).
The tooth block 3-2 is slidably arranged in the tooth block sliding groove 1-8, as shown in fig. 6, the outer circumference of the tooth block 3-2 is an outer tooth part 3-21, and the inner circumference of the tooth block 3-2 is propped against the outer circumference of the cam 3-1. The periphery of the cam 3-1 is a cam gradual change surface 3-16, and the inner periphery of the tooth block 3-2 is a tooth block gradual change surface 3-22. When the cam 3-1 rotates clockwise, the contact point of the cam gradual change surface 3-16 and the tooth block gradual change surface 3-22 expands. In this embodiment, the cam gradual change surface 3-16 includes a first cam gradual change surface 3-161 and a second cam gradual change surface 3-162, the tooth block gradual change surface 3-22 includes a first tooth block gradual change surface 3-221 and a second tooth block gradual change surface 3-222, the first cam gradual change surface 3-161 is propped against the first tooth block gradual change surface 3-221, the second cam gradual change surface 3-162 is propped against the second tooth block gradual change surface 3-222, and the strength applied to the angle regulator in the use process or the experimental process of the seat framework is born by sharing, so that the strength before and after locking the single angle regulator is improved.
The periphery of the fixed disc 1 is provided with a movable disc 2, and the inner periphery of the movable disc 2 is provided with an inner gear ring meshed with the outer tooth part 3-21 of the periphery of the tooth block 3-2.
The working process of the invention is as follows:
the angle adjusters are symmetrically arranged on the side surface of the seat. When the locking is to be performed, the driving shaft 5 rotates clockwise, the cam positioning block 5-3 drives the cam 3-1 to rotate clockwise, the contact point of the first cam gradual change surface 3-161 and the first tooth block gradual change surface 3-221 and the contact point of the second cam gradual change surface 3-162 and the second tooth block gradual change surface 3-222 expand outwards, and the tooth block 3-2 moves outwards along the tooth block sliding groove 1-8 in a radial direction until the external tooth part 3-21 is meshed with the inner gear ring of the inner periphery of the movable disc 2, as shown in fig. 10. The movable disc 2 is locked, and the tooth block 3-2 and the driving shaft 5 cannot rotate clockwise. The elastic pre-tightening end 3-32 of the cam pre-tightening coil spring abuts against the side face of the cam coil spring projection 3-15, preventing the cam 3-1 from rotating counterclockwise (unlocking direction).
When unlocking is needed (anticlockwise rotation), the driving wheel 5 anticlockwise rotates to drive the cam 3-1 to anticlockwise rotate, and unlocking is started.
Claims (6)
1. A high-strength multipoint contact type angle adjuster self-locking structure of an automobile seat is characterized in that: the structure comprises a fixed disc (1), wherein a driving shaft (5) is arranged in the fixed disc (1), and a self-locking assembly (3) is arranged between the driving shaft (5) and the fixed disc (1); the self-locking assembly (3) comprises a cam (3-1) and a coil spring (3-3), the cam (3-1) is installed on a driving shaft (5), a tooth block (3-2) is arranged between the cam (3-1) and the fixed disc (1), the coil spring (3-3) comprises a cam pre-tightening coil spring, the cam pre-tightening coil spring is arranged between the cam (3-1) and the fixed disc (1), a movable disc (2) is arranged on the periphery of the fixed disc (1), a gear installation hole (3-11) is formed in the cam (3-1), a gear positioning groove (3-12) is formed in the gear installation hole (3-11), a cam coil spring lug (3-15) is arranged on the cam (3-1), and a cam gradual change surface (3-16) is arranged on the periphery of the cam (3-1); the outer periphery of the tooth block (3-2) is provided with an external tooth part (3-21), and the inner periphery of the tooth block (3-2) is provided with a tooth block gradual change surface (3-22); the cam gradual change surface (3-16) comprises a first cam gradual change surface (3-161) and a second cam gradual change surface (3-162); the tooth block gradual change surface (3-22) comprises a first tooth block gradual change surface (3-221) and a second tooth block gradual change surface (3-222).
2. The high-strength multi-point contact recliner self-locking structure of an automotive seat as set forth in claim 1, wherein: the novel gear tooth block fixing device is characterized in that a driving shaft mounting groove (1-3) is formed in the fixing disc (1), one side of the driving shaft mounting groove (1-3) is communicated with a driving shaft through hole (1-4), a coil spring mounting groove (1-5) is formed in the periphery of the driving shaft mounting groove (1-3), the coil spring mounting groove (1-5) is a cam coil spring mounting groove, a coil spring positioning block (1-6) is arranged in the coil spring mounting groove (1-5), a tooth block spacing block (1-7) is arranged on one side of the driving shaft mounting groove (1-3), and a tooth block sliding groove (1-8) is formed between the tooth block spacing blocks (1-7).
3. The high-strength multi-point contact recliner self-locking structure of an automotive seat as set forth in claim 1, wherein: the middle part of the driving shaft (5) is provided with a driving shaft mounting ring (5-1), one side of the driving shaft mounting ring (5-1) is provided with a cam mounting shaft end (5-4), the periphery of the cam mounting shaft end (5-4) is provided with a cam limiting block (5-2), the top surface of the cam limiting block (5-2) is provided with a cam limiting surface (5-22), and one side of the cam limiting block (5-2) is provided with a cam positioning block (5-3).
4. The high-strength multi-point contact recliner self-locking structure of an automotive seat as set forth in claim 1, wherein: a coil spring positioning groove (3-31) is formed in the middle of the coil spring (3-3), and an elastic pre-tightening end (3-32) is arranged at the end part of the coil spring (3-3); the coil spring (3-3) is the cam pre-tightening coil spring.
5. The high-strength multi-point contact recliner self-locking structure of an automotive seat as set forth in claim 1, wherein: an inner gear ring meshed with the outer gear part (3-21) at the periphery of the tooth block (3-2) is arranged at the inner periphery of the movable disc (2).
6. The high-strength multi-point contact recliner self-locking structure of an automotive seat as set forth in claim 4, wherein: the coil spring positioning grooves (3-31) and the coil spring positioning blocks (1-6) are semicircular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416114.3A CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416114.3A CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110949202A CN110949202A (en) | 2020-04-03 |
| CN110949202B true CN110949202B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911416114.3A Active CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
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| CN (1) | CN110949202B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660890B (en) * | 2020-06-10 | 2022-08-23 | 无锡全盛安仁机械有限公司 | Discontinuous angle adjuster and seat |
| CN113147533A (en) * | 2021-04-15 | 2021-07-23 | 佛吉亚(无锡)座椅部件有限公司 | Manual angle adjuster and adjusting method |
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| CN110949202A (en) | 2020-04-03 |
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Address after: 214000 No. 1999, Dongsheng Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Applicant after: Jiangsu Borman Mechatronics Co.,Ltd. Address before: 214101 room 1026, Wuzhou industrial city, Youyi Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Applicant before: Jiangsu Borman Transmission Technology Co.,Ltd. |
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